VARIOUS MANURES. 



145 



From Corenwinder's experiments we may conclude 

 that when nitrate of soda is used in large quantities, 

 the cinders from the beets having grown with the same, 

 will contain less carbonate of potassa and more carbo- 

 nate of soda than when sulphate of ammonia is used as 

 a fertilizer. The increase of the chloride of potassium 

 in the cinders corresponds with an increase of the same 

 chemical in the fertilizer. 



Choice of a Manure? — As we have seen, the number 

 of manures of organic and mineral origin at our disposal 



. ' The following table shows the systems adopted by Deherain and is also 

 most excellent ; permits a comparison between the yield and cost, etc. 



From the above we might conclude that nothing is gained by the addition of a 

 fertilizer. But even in a case similar to this we would be misled if the sac- 

 charine percentage had not been ascertained. 



